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If 1.63 times 10 negative 4 of helium dissolves in 100.0g of water, what is the concentration in parts per million
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Asolution contains 225 g of sodium chloride, nacl, dissolved in enough water to make a 0.25 l of solution. what is the molarity of the solution?
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Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.
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